Two homologous protein components of hepatic gap junctions

Two homologous protein components of hepatic gap junctions
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肝间隙连接的两种同源蛋白质成分

DOI:
--
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发表时间:
1987
期刊:
影响因子:
64.8
通讯作者:
J. Revel
J. Revel
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Bruce J. Nicholson;Bruce J. Nicholson;R. Dermietzel;D. B. Teplow;O. Traub;K. Willecke;J. Revel

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被引文献

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间隙连接由紧密排列的跨膜通道对(连接子)组成,低相对分子质量的物质通过连接子从细胞扩散到邻近细胞。在肝脏中,连接子由六种蛋白质峰组成1,2,到目前为止,这些蛋白质峰被认为是相同的3。然而,除了相对分子质量(Mr)为28,000(参见参考文献4和6)的主要多肽外,Mr为21,000(21 K)的组分在肝脏中反复出现3 -5。这种丰度较低的蛋白质的氨基末端序列(18个残基)表明它与Mr 28 K蛋白质相关,但不同。免疫染色和免疫沉淀显示这两种蛋白质在相同的缝隙连接斑块中。因此,似乎肝间隙连接通道(以及可能的其他通道)由两种(或多种)同源蛋白组成。
Gap junctions consist of closely packed pairs of transmembrane channels, the connexons, through which materials of low relative molecular mass diffuse from the cell to neighbouring cells. In liver, connexons consist of six protein summits1,2 which, until now, were believed to be identical3. However, besides the major polypeptide of relative molecular mass (Mr) 28,000 (and see refs 4 and 6), a component of Mr 21,000 (21K) has been repeatedly observed3–5 in liver. The amino-terminal sequence (18 residues) of this less abundant protein shows that it is related to, but distinct from, the Mr 28K protein. Immuno-staining and immuno-precipitation show both proteins to be in the same gap junctional plaques. Thus, it seems that hepatic gap junction channels (and by extension possibly others) are composed of two (or more) homologous proteins.
一种不依赖去垢剂的方法,用于从大鼠肝脏中分离间隙连接。
DOI: --
发表时间: 1984
期刊: The Journal of biological chemistry
影响因子: --
作者:
Hertzberg,EL
通讯作者: Hertzberg,EL
来自大鼠心脏和肝脏的 Mr 28,000 间隙连接蛋白不同但相关。
DOI: --
发表时间: 1985
期刊: The Journal of biological chemistry
影响因子: --
作者:
Nicholson,BJ;Gros,DB;Kent,SB;Hood,LE;Revel,JP
通讯作者: Revel,JP
孤立的肝脏间隙连接:跨连接电流的门控与完整的大鼠肝细胞对相似。
DOI: 10.1073/pnas.83.15.5494
发表时间: 1986
影响因子: 11.1
作者:
Spray,DC;Saez,JC;Brosius,D;Bennett,MV;Hertzberg,EL
通讯作者: Hertzberg,EL
心脏间隙连接蛋白 (Mr 47,000) 在其羧基末端具有组织特异性细胞质结构域 Mr 17,000。
DOI: 10.1016/0006-291x(87)90475-x
发表时间: 1987
影响因子: 3.1
作者:
Manjunath,CK;Nicholson,BJ;Teplow,D;Hood,L;Page,E;Revel,JP
通讯作者: Revel,JP